<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>表单标签</title>
</head>
<body>
    <form method="post" action="demo.java">
        <label for="username">用户名：</label>
        <input type="text" name="username" id="username" placeholder="请输入用户名" value=""/><br>
        <label for="pass">密码：</label>
        <input type="password" name="password" id="pass" placeholder="请输入密码" value=""/><br>
        <input type="number" placeholder="请输入数字"><br>
        <input type="url" placeholder="请输入正确的网址"><br>
        <input type="email" placeholder="请输入正确的邮箱"><br>
        <textarea rows="10" cols="50">在这里输入内容...</textarea>
        <input type="submit" value="确定" name="submit"/>
        <input type="reset" value="重置" name="reset"/>

    </form>
</body>
</html>